modified cmake setup to build VME library when building EUDRB producer; changed directory structure to reflect dependency; updated documentation wrt eudrb producer
this resolves issue #2
extended gitignore to emacs autosaves, eclipse project files and external packages downloaded into ./extern
Merge branch 'master' of https://github.com/eudaq/eudaq

Conflicts:
	.gitignore
	producers/eudrb/CMakeLists.txt
	producers/vme/CMakeLists.txt
Merge pull request #3 from hperrey/master

CMake scripts modified to build VME lib when building EUDRB producer